There are several factors that determine the effectiveness of a stimulus as a conditioned reinforcer. These are
(1) Frequency of primary.unconditioned reinforcement: The effectiveness of a conditioned reinforcer depends on the frequency of primary reinforcement correlated with it. As the frequency of primary reinforcers goes up, so does the strength of the conditioned reinforcer.
(2) Variability of primary reinforcement: Variability (different rates of payoff) affects the strength of a conditioned reinforcer,
(3) MOs: The effectiveness of a conditioned reinforcer is dependent upon the primary reinforcer’s MO.
(4) Delay to primary reinforcement: The longer the delay between a stimulus and a primary reinforcer, the less effective the stimulus is as a conditioned reinforcer. Be able to describe the factors that affect the strength of conditioned reinforcers.